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add vector2 and vector3 userdata types to simplify getting a slope's o/d/normal

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This commit is contained in:
Monster Iestyn 2018-10-20 19:00:37 +01:00
parent 7d4e27937d
commit 61fa7026a1
2 changed files with 65 additions and 19 deletions
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2
src/lua_libs.h
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@ -39,6 +39,8 @@ extern lua_State *gL;
#define META_SECTOR "SECTOR_T*"
#define META_FFLOOR "FFLOOR_T*"
#define META_SLOPE "PSLOPE_T*"
#define META_VECTOR2 "VECTOR2_T"
#define META_VECTOR3 "VECTOR3_T"
#define META_MAPHEADER "MAPHEADER_T*"
#define META_CVAR "CONSVAR_T*"

82
src/lua_maplib.c
View file

@ -223,6 +223,19 @@ static const char *const slope_opt[] = {
"flags",
NULL};
// shared by both vector2_t and vector3_t
enum vector_e {
vector_x = 0,
vector_y,
vector_z
};
static const char *const vector_opt[] = {
"x",
"y",
"z",
NULL};
static const char *const array_opt[] ={"iterate",NULL};
static const char *const valid_opt[] ={"valid",NULL};
@ -1232,32 +1245,16 @@ static int slope_get(lua_State *L)
lua_pushboolean(L, 1);
return 1;
case slope_o: // o
lua_createtable(L, 0, 3);
lua_pushfixed(L, slope->o.x);
lua_setfield(L, -2, "x");
lua_pushfixed(L, slope->o.y);
lua_setfield(L, -2, "y");
lua_pushfixed(L, slope->o.z);
lua_setfield(L, -2, "z");
LUA_PushUserdata(L, &slope->o, META_VECTOR3);
return 1;
case slope_d: // d
lua_createtable(L, 0, 2);
lua_pushfixed(L, slope->d.x);
lua_setfield(L, -2, "x");
lua_pushfixed(L, slope->d.y);
lua_setfield(L, -2, "y");
LUA_PushUserdata(L, &slope->d, META_VECTOR2);
return 1;
case slope_zdelta: // zdelta
lua_pushfixed(L, slope->zdelta);
return 1;
case slope_normal: // normal
lua_createtable(L, 0, 3);
lua_pushfixed(L, slope->normal.x);
lua_setfield(L, -2, "x");
lua_pushfixed(L, slope->normal.y);
lua_setfield(L, -2, "y");
lua_pushfixed(L, slope->normal.z);
lua_setfield(L, -2, "z");
LUA_PushUserdata(L, &slope->normal, META_VECTOR3);
return 1;
case slope_zangle: // zangle
lua_pushangle(L, slope->zangle);
@ -1358,6 +1355,43 @@ static int slope_set(lua_State *L)
return 0;
}
static int vector2_get(lua_State *L)
{
vector2_t *vec = *((vector2_t **)luaL_checkudata(L, 1, META_VECTOR2));
enum vector_e field = luaL_checkoption(L, 2, vector_opt[0], vector_opt);
if (!vec)
return luaL_error(L, "accessed vector2_t doesn't exist anymore.");
switch(field)
{
case vector_x: lua_pushfixed(L, vec->x); return 1;
case vector_y: lua_pushfixed(L, vec->y); return 1;
default: break;
}
return 0;
}
static int vector3_get(lua_State *L)
{
vector3_t *vec = *((vector3_t **)luaL_checkudata(L, 1, META_VECTOR3));
enum vector_e field = luaL_checkoption(L, 2, vector_opt[0], vector_opt);
if (!vec)
return luaL_error(L, "accessed vector3_t doesn't exist anymore.");
switch(field)
{
case vector_x: lua_pushfixed(L, vec->x); return 1;
case vector_y: lua_pushfixed(L, vec->y); return 1;
case vector_z: lua_pushfixed(L, vec->z); return 1;
default: break;
}
return 0;
}
static int lib_getMapheaderinfo(lua_State *L)
{
// i -> mapheaderinfo[i-1]
@ -1542,6 +1576,16 @@ int LUA_MapLib(lua_State *L)
lua_setfield(L, -2, "__newindex");
lua_pop(L, 1);
luaL_newmetatable(L, META_VECTOR2);
lua_pushcfunction(L, vector2_get);
lua_setfield(L, -2, "__index");
lua_pop(L, 1);
luaL_newmetatable(L, META_VECTOR3);
lua_pushcfunction(L, vector3_get);
lua_setfield(L, -2, "__index");
lua_pop(L, 1);
luaL_newmetatable(L, META_MAPHEADER);
lua_pushcfunction(L, mapheaderinfo_get);
lua_setfield(L, -2, "__index");